Sleeve Spacer

A51H20522-11

A51H20522-11
(NSN) National Stock Number
5365-00-003-6552
Federal Supply Classification
5365 Bushings, Rings, Shims and Spacers
Item Name Code
13207
Schedule B Code
7326908695
Summary

1.8000 inches nominal overall length, 1.1290 inches minimum and 1.1310 inches maximum body outside diameter, 0.9910 inches minimum and 0.9930 inches maximum body inside diameter, 1.2900 inches minimum and 1.3000 inches maximum flange outside diameter, 0.0920 inches minimum and 0.0940 inches maximum flange width, square all corners corner shape

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - ZZ
Identification

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

INC FIIG Concept Condition
13207 A045A0 - 1
Specifications
Overall Length
1.8000 inches nominal
Details The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.
Body Outside Diameter
1.1290 inches minimum and 1.1310 inches maximum
Details The length of a straight line which passes through the center of the body,and terminates at the outside circumference.
Body Inside Diameter
0.9910 inches minimum and 0.9930 inches maximum
Details The length of a straight line which passes through the center of a body,and terminates at the inside circumference.
Flange Outside Diameter
1.2900 inches minimum and 1.3000 inches maximum
Details The length of a straight line which passes through the center of the flange,and terminates at the outside circumference.
Flange Width
0.0920 inches minimum and 0.0940 inches maximum
Details A measurement taken at right angles to the length of a flange,in distinction from thickness.
Corner Shape
square all corners
Details The physical configuration of the corner.
Hardness Rating
38.0 rockwell c minimum overall and 45.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Material
steel corrosion resisting overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment Document And Classification
qq-c-320,class 2 fed spec single treatment response inside diameter surface of body
Details The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.
Style Designator
solid, external flange one end
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Test Data Document
81349-mil-i-6868 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.).
Details The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
A51H20522-11 61174 1 - 3 9 - KE
A51H20522-11 26512 1 - 5 9 - KE
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
50675 - T -
RVC WCC TCC SHC
- 574 Z 9

Certified Supplier

Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.

  • Genuine Manufacturers Parts
  • 100% Product Inspection
  • 7 Year Sales Record Retention
  • Fast On-Time Delivery
  • HAZMAT Certified
  • Global Shipping
Manufacturer
NORTHROP GRUMMAN SYSTEMS CORPORATION
CAGE: 79RG9
JACKSONVILLE , FL , 32221-8130
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 5365-00-003-6552
What is the NIIN of the NSN 5365-00-003-6552?
The National Item Identification Number (NIIN) of the NSN 5365-00-003-6552 is 00-003-6552
When the NSN 5365-00-003-6552 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Fri, May 26, 1972
Does the NSN 5365-00-003-6552 contain any precious metals?
Type/content is unknown
Does the NSN 5365-00-003-6552 contain any hazardous material?
No data in HMIRS

Can't Find It

If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.

Similar Products
Who we are?

We are a trusted provider of milspec and aerospace hardware, offering high-quality consumables and parts. With a commitment to excellence, we guarantee reliable and fast delivery through our network of logistics centers. Our mission is to support the aerospace industry with precision and efficiency.

Contact
3555 Agricultural Center Dr.
St. Augustine, FL, 32092
United States
© 2025 Aerospace Hardware Store, Inc. All rights reserved.
Made in USA